class Student {
    private String name;
    private int age;

    public Student() {
        System.out.println("实例化一个新的student对象");
    }

    public Student(String name, int age) {
        this();
        this.name = name;
        this.age = age;
    }

    public String read() {
        return "我是" + name + ",年龄" + age;
    }
}
public class Example011 {
    public static void main(String[] args) {
        Student stu = new Student("张三", 18);
        System.out.println(stu.read());
    }
}